Ive never seen it poured. However think of all of the things that are extruded out of PVC in high volume. PVC pipe, gutter, fence posts, window frames, vinyl siding and trim. The trick will probably be finding a place that extrudes PVC in small quantities. Most of the plastic pipe plants around here have silos outside of the plant full of PVC resin pellets ready to be fed into an extruder. Some of these silos are 30-50 feet tall. The high volume plants usually have a pneumatic conveying system to deliver the PVC pellets to the extruders. Once they start up an extruder it typically runs 24x7 until they are done with that run.
Dave On 10/19/2016 4:46 PM, Leonardo Marsaglia wrote: > 2016-10-17 9:50 GMT-03:00 craig <cr...@facework.com>: > >> I don;t know what resources you have there. >> >> Minimum equipment approach >> >> 1 Heat the plastic and pour the rectangular shape oversize, Possibly >> flattening down and spread it out as >> you do. (How much it spreads naturally will be dependent on both >> material and surface temperature. >> If you have a big enough machine you want to use it to control the >> pour path. >> 2 cut off the edges and recycle the material with mill or saw. >> 3. mill the top if the flattening does not leave the right height. >> 4 possibly heat polish (slightly melt the surface) the form if glossy >> surface it more important than sharp rectangular edges. >> >> You may want to reverse steps 2 and 3 and heat polish the top for a >> glossy surface before cutting the edges. >> > Is it possible to pour PVC as you would do with molten metal? I mean > because of the viscosity of the plastic at that temperature I always > thought the only solution is to apply pressure wheter extruding it or > injecting it. > > > > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
